Epson 5 Confusion Property

Confusion Property

Confusion Property

Applies To

Vision Objects: Correlation, Geometric, Polar

Description

Indicates the amount of confusion expected in the image to be searched. This is the highest shape score a

feature can get that is not an instance of the feature for which you are searching. (i.e. Will there be patterns

in the image which will "confuse" the searching algorithms? To what level?)

Usage

VGet Sequence.Object.Confusion, var

VSet Sequence.Object.Confusion, value

Sequence Name of a sequence or string variable containing a sequence name.

Object Name of an object or string variable containing an object name. The object must exist in the

specified sequence.

var Integer variable that will contain the value of the property.

value Integer expression for the new value of the property.

Values

Integer number from 1-999 with the higher numbers representing a higher confusion in an image.

Default: 800

Remarks

Both the Confusion property and the Accept property affect searching and pattern finding speed. The

Confusion property allows the system to quit the Correlation Search or Polar Search before exploring all

possible regions of the image, thus speeding up the process.

Set the Confusion property based on the highest value you expect the "wrong part" to get (plus a margin for

error). The Confusion property should be greater than or equal to the Accept property. Setting the

Confusion property to a high value may increase the time of the search, but may be necessary to insure that

the correct features are found.

The Confusion property becomes very important when there are multiple features within an image which

are very similar. In these cases the proper setting of the Confusion property (i.e. at a high enough level)

helps eliminate the wrong features from the Correlation Search, or Polar Search. However, when an image

has few features which look the same then the Confusion property can be set a little lower. This can help

reduce processing time.